Navigation channel from the pilot station is buoyed and restricted by two bars.

The Outer Bar of sand bottom located about 2 nautical miles East South East of Tanjung Po Lighthouse has a depth of 5.2 metres above Chart Datum whist the Inner Bar lies approximately 1 nautical mile South East of Muara Tebas with a depth of 4.3m above chart datum. Tidal range is 4.5 metres.